KR101992947B1 - Anti-slip Composition For Pavement And Preparing Method Thereof - Google Patents

Abstract

The present invention relates to a composition for use as an anti-skid road paving material. According to one aspect of the present invention, the anti-skid composition comprises: 25-35 parts by weight of PMMA resin; 25-35 parts by weight of silica; 25-35 parts by weight of calcium carbonate; 1-5 parts by weight of a pigment; 3-7 parts by weight of carbon fibers; 2-5 parts by weight of thermoplastic rubber; 0.05-2 parts by weight of an anti-sagging agent; and 0.01-1 parts by weight of amine. The anti-skid composition not only has anti-skid function and high compressive strength but also a low content of volatile organic compounds so as to prevent unpleasant smells from bothering construction workers or pedestrians and reduce civil complaints. According to another aspect of the present invention, a method of preparing an anti-skid composition comprises: a first stirring step of adding a PMMA resin to a stirrer to stir the same; a second stirring step of adding an anti-sagging agent to the stirrer to stir a first mixture; a third stirring step of adding amine to the stirrer to stir a second mixture; a fourth stirring step of adding calcium carbonate and a pigment to the stirrer to stir a third mixture; a fifth stirring step of adding carbon fibers and thermoplastic rubber to stir a fourth mixture; a sixth step of adding silica to stir a final mixture; an inspection step of inspecting the color, viscosity, and drying time of the final mixture; and a packing step of dividing the final product into smaller portions and packing the same.

Description

TECHNICAL FIELD [0001] The present invention relates to an anti-slip composition and an anti-slip composition,

More particularly, to a non-slip pavement composition applied to a bicycle road, a walkway, a theme street, and the like.

In general, the non-slip pavement is a facility to increase the slip resistance of the road to improve the running of the vehicle safely. It enhances the slip resistance in places where the slip resistance of the road surface is lowered, Or a facility installed for the purpose of preventing traffic accidents by raising the discrimination power of roads that people walk on, such as school roads, crosswalks, and bicycle roads. The non-slip pavement is installed in a section where a required level of sliding resistance can not be secured according to the geometry and traffic characteristics of the road, thereby enhancing the frictional force. That is, when the slip resistance of the package falls below a certain level as the use period of the road increases, the slip prevention composition is used to repair the road in order to increase the slip resistance fundamentally in terms of maintenance of the package, In recent years, such a non-slip composition has been applied to rooftops, outdoor parking lots, parks, and the like, which are places that are slippery when walking.

Conventional paints used in non-slip packaging include solvent-free epoxy and urethane. However, there are various problems such that the construction temperature is limited to 5 ° C to 30 ° C, chlorine gas harmful to the human body is generated during the curing reaction, and the durability period is only 1 to 2 years because of low compressive strength.

To solve these problems, MMA (Methyl methacrylate) resin has been recently used instead of solvent-free epoxy or urethane. Korean Patent No. 10-0951469 entitled " Water-borne Acrylic-Epoxy Mortar for Road Pavement and Road Packing Method Using the Same "discloses a non-slip composition comprising a liquid resin composed of an acrylic resin and an epoxy resin. However, the conventional anti-slip composition has a high incidence of cracks on the road, and thus has a low durability, and unpleasant odor is generated due to the increase in the temperature during construction or during the summer, resulting in complaints.

Korean Registered Patent No. 10-0951469 (registered on March 30, 2010)

And has a slip prevention function, a long replacement period and a reduced irritating smell. The present invention is not limited to the above-described technical problems, and another technical problem can be derived from the following description.

The anti-slip composition according to one aspect of the present invention comprises 25-35 parts by weight of PMMA resin, 25-35 parts by weight of silica, 25-35 parts by weight of calcium carbonate, 1-5 parts by weight of pigment, 3-7 parts by weight of carbon fiber, 2-5 parts by weight of rubber, 0.05-2 parts by weight of an anti-settling agent, and 0.01-1 parts by weight of an amine.

According to another aspect of the present invention, there is provided a method of manufacturing a non-slip composition, comprising: a first agitation step in which a PMMA resin is charged into a stirrer and agitated; A second agitating step of agitating the first mixture by adding an anti-settling agent to the agitator; A third stirring step in which the amine is added to the first mixture to stir the second mixture; A fourth stirring step in which calcium carbonate and a pigment are added to the second mixture to stir the third mixture; A fifth stirring step in which carbon fiber and thermoplastic rubber are added to the third mixture to stir the fourth mixture; A sixth stirring step in which silica is added to the fourth mixture to stir the final mixture; An inspection step of inspecting the color, viscosity and drying time of the final mixture; And a packaging step in which the final mixture is subdivided and packaged.

25-35 parts by weight of PMMA resin, 25-35 parts by weight of silica sand, 25-35 parts by weight of calcium carbonate, 1-5 parts by weight of pigment, 3-7 parts by weight of carbon fiber, 2-5 parts by weight of thermoplastic rubber, 2 parts by weight of an amine and 0.01 to 1 part by weight of an amine is used as a non-slip wrapping material, the smell is reduced due to the non-slip function and high compressive strength and low volatile content, Civil incidents can be reduced.

Hereinafter, the contents of the present invention will be described in more detail.

In order to shorten the braking distance of an automobile, the present invention is applied to a place where the slip resistance of the road surface is lowered, the plane surface of the road and the bad linear line shape, or the school attending road, the pedestrian crossing, Which is used to improve the friction force of the road.

The non-slip composition according to the present invention comprises 25-35 parts by weight of PMMA resin, 25-35 parts by weight of silica sand, 25-35 parts by weight of calcium carbonate, 1-5 parts by weight of pigment, 3-7 parts by weight of carbon fiber, 0.05 to 2 parts by weight of an anti-settling agent, and 0.01 to 1 part by weight of an amine.

PMMA (Poly methyl methacrylate) resin is a synthetic resin mainly composed of MMA monomer (Methyl methacrylate monomer), and has excellent weatherability, scratch resistance and coloring property, and is widely used as a component material for automobiles, optical products, and electric and electronic parts. It is commonly used as methacrylic resin or acrylic resin, and pyrolysis can be easily recovered to monomers at a yield of almost 100%. It is excellent in physical properties such as durability, heat resistance, chemical resistance, abrasion resistance, UV safety, and weather resistance which is resistant to weather and weather such as sunlight to suppress corrosion caused by external environmental changes such as weather and climate change. It is used to improve the adhesion strength and toughness by intimately penetrating and integrating, and to improve the coloring property by the pigment and the like.

There is a solventless epoxy or urethane as a conventional paint for slip prevention. When using solventless epoxy or urethane, PMMA resin has a wide range from -30 ° C to 25 ° C, while curing time is 24 hours for solventless epoxy and 3 to 7 days for urethane. The curing time is short because the resin can travel and walk about one hour after construction.

The PMMA resin has an irritating odor that may cause discomfort or dizziness, which makes it uncomfortable for the operator or pedestrian during the coating process, and the smell is generated when the road is heated in the summer .

The PMMA resin used as a conventional sliding material is generally composed of 70% of volatile components and 30% of nonvolatile components, so that the solid content is 30%. Conventional PMMA resins have a molecular weight (Mw) of 7,000 to 10,000 and a viscosity of 100 CPS to 300 CPS. To improve uniformity and dispersibility as a solvent, and to improve sprayability upon injection into roads. However, because of the high volatile content, volatile organic compounds (VOCs) are easily evaporated, resulting in a serious smell and, in some cases, photochemical reactions, resulting in the formation of photochemical oxidizing substances such as ozone, leading to headaches and dizziness.

The PMMA resin used in the present invention has a solid content of 40-50 wt% and a content ratio of volatile matter to nonvolatile matter of 6: 4 to 5: 5, so that the volatile content of the PMMA resin is relatively low compared to the conventional PMMA resin. According to the Direct Sensory Odor Indication method, the odor level is expressed as 0 ~ 5, and the odor of the odor threshold level is 1 degree, the normal level not to be recognized as the odor level is 2 degree, 3 to 5 degrees. The PMMA resin used in the present invention has a bad odor intensity lower than 3 due to a low volatile content, and the smell rejection is remarkably reduced.

In general, the viscosity tends to increase as the molecular weight (Mw) increases at the same concentration. Since the conventional PMMA resin has a molecular weight (Mw) of 7,000 to 10,000, when the concentration, that is, the solid content is increased to 40 to 50% by weight, the viscosity becomes too high and it is difficult to use as a solvent. The PMMA resin used in the present invention is an acrylic polyol obtained through polymerization of an MMA monomer and a butyl methacrylate monomer and has a molecular weight (Mw) of 800 to 1,200. The volatile component is reduced and the viscosity of 100 CPS to 300 CPS is maintained even though the solid content is increased. Therefore, the smell is reduced due to a high solid content as compared with the conventional PMMA resin, but the viscosity is maintained without remarkable change, so that the physical properties such as uniformity of the composition, dispersion degree and dispersion degree upon injection do not occur.

The amount of the PMMA resin used in the present invention is 25-35 parts by weight. When the amount of the PMMA resin is less than 25 parts by weight, the viscosity of the composition is too high to uniformly mix, and the curing agent does not mix well with the composition at the time of construction, Work time is delayed. If the amount is more than 35 parts by weight, the viscosity of the composition is low, which may cause the composition to flow down from the slope part, difficulty in forming a certain thickness of the packaging material, .

In order to further enhance the odor reduction effect, 1-5 parts by weight of activated charcoal, charcoal, loess, rice straw, rice hull, etc. may be added to the anti-slip composition.

Calcium carbonate (CaCO ₃ ) is a finely divided powder made by pulverizing limestone. It is a white, weakly basic, stable at room temperature. It is used as various neutralizing agents such as raw materials for cement, raw materials for calcium oxide, steel making and building materials , When used as a road packaging material, improves the mechanical properties of the packaging material formed after the packaging material is applied to the road and cured, thereby increasing the durability and strength of the packaging material, thereby preventing aging and allowing the road surface mark to remain for a long time.

The amount of calcium carbonate used in the present invention is 25 to 35 parts by weight. When the amount is less than 25 parts by weight, the composition shrinks and the packing material is lifted from the surface of the road. When the amount exceeds 35 parts by weight, And the specific gravity of the relatively different components is reduced, so that the slip resistance and strength can not be sufficiently secured.

The silica sand is used in the present invention to increase the frictional force together with the thermoplastic rubber and the carbon fiber. The silica sand is used in the present invention in a range of 16 to 20 mesh, 0.85 to 1.2 mm / micron, 5 to 20 mesh, 0.6 to 0.85 mm / 6 (30 to 60 mesh, 0.25 to 0.6 mm / micron) is suitable.

The silica sand used in the present invention is 25-35 parts by weight. When the amount is less than 25 parts by weight, the economical efficiency is lowered because the relatively low silica sand ratio is lowered. When the silica sand is used more than 35 parts by weight, the silica sand having a relatively low strength is increased and durability is lowered.

The anti-settling agent prevents precipitation and settling of high specific gravity pigment, silica sand, thermoplastic rubber and the like to uniformize the composition and impart viscosity. Polyethylene-based powder, polyethylene wax, higher fatty acid amide-based, and the like are generally used.

The anti-settling agent used in the present invention is 0.05 to 2 parts by weight, and when it is less than 0.05 part by weight, the pigment is precipitated and the composition is not uniform. If the amount is more than 2 parts by weight, the specific gravity of the other component is decreased, and thus the slip resistance and strength can not be sufficiently secured.

Amines are used as curing agents or curing accelerators, and aromatic amines, aliphatic amines, aromatic tertiary amines and the like are commonly used.

When the amount of the amine is less than 0.02 parts by weight, the composition does not harden. When the amount of the amine is more than 1 part by weight, the specific gravity of the other components is decreased, .

Pigments are powdery colorants that do not dissolve in water and most organic solvents. It is white or colored. It is mixed with linseed oil such as linseed oil, varnish, synthetic resin liquid and gum arabic to make paints, printing inks, paints, etc., and color them on the surface of the object or directly mix them on rubber or synthetic resin. It is also used for coloring ceramics glazes, cosmetics, and synthetic fiber raw materials.

Pigments used as anti-slip packaging materials add color to the anti-slip pavement composition to improve visibility and visibility of roads and provide information on the road surface with letters and symbols. It is possible to use at least one of iron oxide, chromium oxide, barium sulfate, barium carbonate, titanium dioxide, manganese dioxide, titanium dioxide, zirconium silicate and carbon black. Pigments, green pigments such as chromium oxide, blue-black pigments such as sodium aluminosilicate, and white pigments such as titanium oxide.

The pigment used in the present invention is 1-5 parts by weight. When the amount of the pigment is less than 1 part by weight, the color can not be developed smoothly. If the amount is more than 5 parts by weight, the specific gravity of the other component is decreased, .

Carbon fiber is a fiber made by heating and carbonizing organic fiber in an inert gas. It is a structure in which a hexagonal ring of carbon forms a layered lattice in succession, and has metallic luster and black or gray color. Cellulose, acrylic fiber, vinylon, pitch, rayon, etc. are used. Depending on the raw material or the treatment temperature, the molecular arrangement and crystallinity are changed. A strength of 10 to 20 g / d, and a specific gravity of 1.5 to 2.1. It is excellent in heat resistance and impact resistance, strong in chemicals, and resistant to pests. Oxygen, hydrogen, nitrogen, etc. molecules escape from the heating process, so they are lighter than aluminum because of their reduced weight, while they are more elastic and stronger than iron.

The carbon fiber used in the present invention is 3-7 parts by weight, and if it is less than 3 parts by weight, the compressive strength can not be developed and the durability is lowered. If the amount is more than 7 parts by weight, the compressive strength of the composition is not increased proportionally, and the carbon fiber content is relatively high, resulting in poor economical efficiency.

The carbon fibers used in the present invention are selected from the group consisting of polyacrylonitrile (PAN) fibers, pitch fibers, rayon fibers and cellulose fibers, and are not limited thereto Do not.

Thermoplastic rubbers are chain-like polymeric materials exhibiting rubber-like elasticity at room temperature, as well as natural rubber obtained from rubber tree liquids and synthetic rubbers synthesized in petrochemicals. Natural rubber is obtained mainly from the sap of Para-rubber tree (Hevea brasiliensis), and synthetic rubber is made by synthesizing petroleum and acetylene. Rubber trees originated in South America, but only in the Amazon River watershed. When the wood is sucked with a knife, white sap comes out, which is taken as raw material for rubber. There are many kinds of rubber trees, but the elasticity that shows the characteristics of natural rubber taken from each tree is different.

The thermoplastic rubber used in the present invention is 2-5 parts by weight. When the amount is less than 2 parts by weight, the friction resistance is insufficient. When the amount is more than 5 parts by weight, the ratio of the thermoplastic rubber having a relatively low strength is increased, There is a problem that the odor generated can be recognized.

The thermoplastic rubber used in the present invention may be selected from the group consisting of NR (natural rubber), SBR (styrene-butadiene rubber), CR (chloroprene rubber), NBR (nitrile butadiene rubber) (Ethylene Vinyl Acetate), and is not limited thereto.

Hereinafter, a method of manufacturing the anti-slip composition according to an embodiment of the present invention will be described in detail. The method for producing the anti-slip composition according to this embodiment comprises a stirring step, an inspection step, and a packaging step.

In the stirring step, the PMMA resin is further added to the stirrer to stir the mixture. In the second stirring step in which the anti-settling agent is added to the stirrer to stir the first mixture, the amine is added to the first mixture to stir the second mixture. A fourth stirring step in which calcium carbonate and pigment are added to the second mixture to stir the third mixture, a fifth stirring step in which carbon fiber and thermoplastic rubber are added to the third mixture to stir the fourth mixture , And a sixth stirring step in which silica is added to the fourth mixture to stir the final mixture.

In the first stirring step, a PMMA resin serving as a solvent and binder is first added to the agitator and stirred for about 20 minutes. The agitator should be prepared in a size 4-5 times larger than the volume of the PMMA resin to be charged.

In the second stirring step, an anti-settling agent is added to the agitator in which the PMMA resin is uniformly stirred while stirring is continued. The anti-settling agent is uniformly dispersed in the PMMA resin in advance, and the components to be mixed are prepared to be put in.

In the third stirring step, stirring is continued to the agitator containing the PMMA resin and the anti-settling agent, and the amine having a relatively low specific gravity is first charged and mixed so as to be uniform.

In the fourth stirring step, calcium carbonate and pigment, which have a relatively high specific gravity and are difficult to agitate, are added and the stirring speed is lowered and stirred slowly so as to maintain the uniformity of the composition.

In the fifth stirring step, the carbon fiber and the thermoplastic rubber are charged and mixed while confirming whether the mixture in the stirrer is uniformly mixed.

Finally, silica is added to control the frictional resistance of the composition in the sixth stirring step.

At the inspection stage, final inspection is carried out on the color, viscosity and drying time of the final mixture. If the standard indicator set values are not met, they are classified as defective products and discarded.

In the packaging stage, the product shall be subdivided in units of 5 kg, 10 kg, 15 kg, 20 kg and 30 kg, and the standard name shall be used as the non-slip packaging material. The manufacturer's name or its abbreviation, date of manufacture or lot number, mass or volume, Use time, product usage, mixing ratio, etc. should be shown on the outside of the package or container, and notes on distribution and storage, and country of origin.

Hereinafter, the present invention will be described in more detail with reference to Examples, Comparative Examples and Test Examples.

Preparation of PMMA resin

(1) 270 g of MMA monomer and 110 g of BMA monomer were polymerized in the presence of initiator BPO at 140 DEG C for 4 hours, and then 400 g of MMA monomer, 140 g of BMA monomer, 80 g of diluent diacrylate To prepare a PMMA resin having a solid content of 46%.

(2) 220 g of MMA monomer and 110 g of BMA monomer were polymerized at 140 DEG C for 4 hours in the presence of initiator BPO, and then 450 g of MMA monomer, 140 g of BMA monomer, 80 g of diluent diacrylate To prepare a PMMA resin having a solid content of 41%.

(3) 290 g of MMA monomer and 110 g of BMA monomer were polymerized at 140 ° C for 4 hours in the presence of initiator BPO, and then 380 g of MMA monomer, 140 g of BMA monomer, 80 g of diluent diacrylate To prepare a PMMA resin having a solid content of 48%.

(4) 190 g of MMA monomer and 110 g of BMA monomer were polymerized at 140 DEG C for 4 hours in the presence of initiator BPO, then 480 g of MMA monomer, 140 g of BMA monomer, 80 g of diluent diacrylate To prepare a PMMA resin having a solid content of 38%.

(5) 360 g of MMA monomer and 110 g of BMA monomer were polymerized at 140 DEG C for 4 hours in the presence of initiator BPO, and then 310 g of MMA monomer, 140 g of BMA monomer, 80 g of diluent diacrylate To prepare a PMMA resin having a solid content of 55%.

Example 1.

3 kg of the PMMA resin (46% solid content, 1.38 kg of non-volatile matter, 1.62 kg of volatile matter) prepared in the above (1) was added to the stirrer and 0.1 kg of the anti-settling agent was added thereto while stirring. 0.02 kg of amine was added and stirred for 10 minutes. 3 kg of calcium carbonate and 0.2 kg of pigment were added in this order, and the mixture was stirred for 20 minutes to be thoroughly mixed. 0.5 kg of carbon fiber and 0.3 kg of EVA rubber were added, and the mixture was sufficiently stirred to be mixed. 3 kg of silica sand was added thereto, and the mixture was stirred to sufficiently mix for 20 minutes to prepare a composition.

Example 2.

3 kg of PMMA resin (41% solids content, 1.23 kg of non-volatile matter, 1.77 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine, calcium carbonate 3 kg, pigments 0.2 kg, carbon fiber 0.5 kg, EVA rubber 0.3 kg, and silica 3 kg.

Example 3.

3 kg of PMMA resin (solid content 48%; 1.44 kg of non-volatile matter, 1.56 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine, calcium carbonate 3 kg, pigments 0.2 kg, carbon fiber 0.5 kg, EVA rubber 0.3 kg, and silica 3 kg.

Example 4.

3 kg of PMMA resin (solid content 46%; 1.38 kg of non-volatile matter, 1.62 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine and 3 kg of calcium carbonate were mixed in the same manner as in Example 1 , 0.2 kg of pigment, 0.65 kg of carbon fiber, 0.3 kg of EVA rubber and 3 kg of silica sand.

Example 5.

3 kg of PMMA resin (solid content 46%; 1.38 kg of non-volatile matter, 1.62 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine and 3 kg of calcium carbonate were mixed in the same manner as in Example 1 , 0.2 kg of pigment, 0.5 kg of carbon fiber, 0.25 kg of EVA rubber and 3 kg of silica sand.

Example 6.

3 kg of PMMA resin (solid content 46%; 1.38 kg of non-volatile matter, 1.62 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine and 3 kg of calcium carbonate were mixed in the same manner as in Example 1 , 0.2 kg of pigment, 0.5 kg of carbon fiber, 0.45 kg of EVA rubber, and 3 kg of silica sand.

Example 7.

2.6 kg of the PMMA resin (solid content 46%; 1.4 kg of non-volatile fraction, 1.2 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine, 3 kg of calcium carbonate , 0.2 kg of pigment, 0.5 kg of carbon fiber, 0.3 kg of EVA rubber and 3 kg of silica sand.

Example 8.

PMMA resin 3.4 (solid content 46%; 1.84 kg of non-volatile matter, 1.56 kg of volatile matter), 0.1 kg of an anti-settling agent, 0.02 kg of amine, 3 kg of calcium carbonate, manufactured by the same method as in Example 1, The composition was prepared using 0.2 kg of pigment, 0.5 kg of carbon fiber, 0.3 kg of EVA rubber, and 3 kg of silica sand.

Comparative Example 1

(Solid content 38%; 1.14 kg of non-volatile matter, 1.86 kg of volatile matter), 0.1 kg of an anti-settling agent, 0.02 kg of amine, calcium carbonate 3 kg, pigments 0.2 kg, carbon fiber 0.5 kg, EVA rubber 0.3 kg, and silica 3 kg.

Comparative Example 2

3 kg of the PMMA resin prepared in (5) above (55% of solid content, 1.65 kg of non-volatile fraction, 1.35 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine, kg, pigments 0.2 kg, carbon fiber 0.5 kg, EVA rubber 0.3 kg, and silica 3 kg.

Comparative Example 3

3 kg of the PMMA resin prepared in the above (1) (46% solids content, 1.38 kg of non-volatile matter, 1.62 kg of volatile matter), 0.1 kg of an anti-settling agent, 0.02 3 kg of calcium carbonate, 0.2 kg of pigment, 0.3 kg of EVA rubber and 3 kg of silica sand.

Comparative Example 4

3 kg of PMMA resin (solid content 46%; 1.38 kg of non-volatile matter, 1.62 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine and 3 kg of calcium carbonate were mixed in the same manner as in Example 1 , 0.2 kg of pigment, 1 kg of carbon fiber, 0.3 kg of EVA rubber, and 3 kg of silica sand.

Comparative Example 5

3 kg of PMMA resin (solid content 46%; 1.38 kg of non-volatile matter, 1.62 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine and 3 kg of calcium carbonate were mixed in the same manner as in Example 1 , 0.2 kg of pigment, 0.5 kg of carbon fiber, 0.3 kg of EVA rubber and 3 kg of silica sand.

Comparative Example 6

3 kg of PMMA resin (solid content 46%; 1.38 kg of non-volatile matter, 1.62 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine and 3 kg of calcium carbonate were mixed in the same manner as in Example 1 , 0.2 kg of pigment, 0.5 kg of carbon fiber, 0.7 kg of EVA rubber and 3 kg of silica sand.

Comparative Example 7

2.2 kg of PMMA resin (solid content 46%; 1.18 kg of non-volatile matter, 1.02 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine and 3 kg of calcium carbonate were mixed in the same manner as in Example 1 , 0.2 kg of pigment, 0.5 kg of carbon fiber, 0.3 kg of EVA rubber and 3 kg of silica sand.

Comparative Example 8

3.7 kg of PMMA resin (solid content 46%; 1.99 kg of non-volatile matter, 1.71 kg of volatile matter), 0.1 kg of sedimentation inhibitor, 0.02 kg of amine, and 3 kg of calcium carbonate prepared in the same manner as in Example 1 , 0.2 kg of pigment, 0.5 kg of carbon fiber, 0.3 kg of EVA rubber and 3 kg of silica sand.

Examples and Comparative Examples prepared as described above are shown in Table 1 below.

Ingredient (kg) Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 PMMA resin
(Solid content) 3
(46%) 3
(41%) 3
(48%) 3
(46%) 3
(46%) 3
(46%) 2.6
(46%) 3.4
(46%) Anti-settling agent 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Amine 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 Calcium carbonate 3 3 3 3 3 3 3 3 Pigment 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Carbon fiber 0.5 0.5 0.5 0.65 0.5 0.5 0.5 0.5 EVA rubber 0.3 0.3 0.3 0.3 0.25 0.45 0.3 0.3 Silica sand 3 3 3 3 3 3 3 3 Ingredient (kg) Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 PMMA resin
(Solid content) 3
(38%) 3
(55%) 3
(46%) 3
(46%) 3
(46%) 3
(46%) 2.2
(46%) 3.7
(46%) Anti-settling agent 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Amine 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 Calcium carbonate 3 3 3 3 3 3 3 3 Pigment 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Carbon fiber 0.5 0.5 - One 0.5 0.5 0.5 0.5 EVA rubber 0.3 0.3 0.3 0.3 0.2 0.7 0.3 0.3 Silica sand 3 3 3 3 3 3 3 3

Test Example 1. Measurement of odor

In order to evaluate the smell reduction degree of each of the prepared examples and comparative examples, the composition prepared for each of the examples and the comparative examples was applied to asphalt road specimens at a thickness of 3 mm and heated The results are shown in Table 2 below. The odor measurement was carried out using an OMX-SR (Ecomac) measuring instrument.

division Odor test ^ab When applying Upon heating Example 1 65 205 Example 2 79 212 Example 3 61 198 Example 4 64 206 Example 5 64 202 Example 6 69 206 Example 7 66 200 Example 8 78 210 Comparative Example 1 275 428 Comparative Example 2 62 200 Comparative Example 3 64 206 Comparative Example 4 65 204 Comparative Example 5 63 200 Comparative Example 6 78 220 Comparative Example 7 66 207 Comparative Example 8 77 207

^a : Odor intensity 0 to 999 (0: no odor, 999: odor most severe)

^b : average value of three measurements

As shown in Table 2, when Examples 1-3 and Comparative Examples 1-3 are compared, it can be seen that the smell intensity decreases as the solid content of the PMMA resin increases. From this, it can be confirmed that the solid content of the PMMA resin significantly affects the unpleasant smell. The solids content of the PMMA resin increases as the volatile components constituting the PMMA resin are removed, and the volatile matter is interpreted as the cause of the unpleasant smell. Comparing Example 2 and Comparative Example 1, it can be seen that the odor intensity is remarkably reduced in both of the application of the composition and the heating as compared with Comparative Example 1 in Example 2. From this, it can be seen that when the solid content of the PMMA resin is less than 40% by weight, an unpleasant smell is remarkably detected. On the other hand, when Example 3 and Comparative Example 2 are compared, it can be confirmed that there is not a large difference in odor during application of the composition and heating. It can be seen from this that even if the solid content of the PMMA resin exceeds 50% by weight, an unpleasant smell is not abruptly reduced.

As shown in Table 2, when Examples 1 and 5-6 and Comparative Example 5-6 are compared, it can be seen that the smell intensity decreases as the thermoplastic rubber content decreases. From this, it can be seen that the thermoplastic rubber content also significantly affects the unpleasant smell.

Test example 2. Evaluation of frictional force

In order to evaluate the anti-slip effect of each of the examples and comparative examples prepared as described above, the compositions prepared for each of the examples and the comparative examples were each applied to asphalt road specimens to a thickness of 3 mm and heated, And the values are shown in Table 3 below. The sliding resistance measurement was carried out according to ASTM E303: 1993.

division Slip Resistance (BPN) ^b Example 1 ^a 81.2 Example 2 ^a 80 Example 3 ^a 76 Example 4 ^a 88 Example 5 ^a 69 Example 6 ^a 84 Example 7 ^a 83.1 Example 8 ^a 78 Comparative Example 1 ^a 77 Comparative Example 2 ^a 80 Comparative Example 3 ^a 32 Comparative Example 4 ^a 91 Comparative Example 5 ^a 44 Comparative Example 6 ^a 84 Comparative Example 7 ^a 77 Comparative Example 8 ^a 75.8

^a : ASTM E303: 1993 Progress report

^b : British Pendulum Number

As shown in Table 3, when Examples 1 and 4 and Comparative Example 3-4 are compared, it can be seen that the resistance increases as the carbon fiber content increases. From this, it can be seen that the carbon fiber content significantly affects the frictional force of the asphalt road specimen. Comparing Example 1 with Comparative Example 3, it can be seen that the resistance value in Example 1 is significantly increased as compared with Comparative Example 3. From this, it can be seen that the slip prevention effect increases sharply when the carbon fiber is contained. On the other hand, when comparing Example 4 and Comparative Example 4, it can be seen that the resistance value difference between Example 4 and Comparative Example 4 is not large. When the carbon fiber content is more than 7 parts by weight, it is understood that the carbon fiber content is not greatly influenced by the slip prevention effect.

As shown in Table 3, when Examples 1, 5-6 and Comparative Examples 5-6 are compared, it can be seen that the resistance increases as the content of the thermoplastic rubber increases. From this, it can be seen that the thermoplastic rubber content significantly affects the frictional force of the asphalt road specimen. Comparing Example 5 with Comparative Example 5, it can be seen that the resistance value in Example 5 is significantly increased as compared with Comparative Example 5. From this, it can be seen that when the content of the thermoplastic rubber is less than 2 parts by weight, the anti-slip effect sharply decreases. On the other hand, when comparing Example 6 and Comparative Example 6, it can be seen that the difference in resistance value between Example 6 and Comparative Example 6 is not large. If the content of the thermoplastic rubber exceeds 5 parts by weight, it is understood that the content of the thermoplastic rubber does not significantly affect the anti-slip effect.

Test Example 3. Evaluation of durability

In order to evaluate the durability of each of the examples and comparative examples prepared as described above, the composition prepared for each of the examples and comparative examples was applied to asphalt road specimens to a thickness of 3 mm and heated to measure the compressive strength after drying And the values are shown in Table 4 below. The compressive strength was measured according to KS F 2405.

division Compressive strength (MPa) ^b Example 1 ^a 795 Example 2 ^a 796 Example 3 ^a 765 Example 4 ^a 797 Example 5 ^a 787 Example 6 ^a 788 Example 7 ^a 800 Example 8 ^a 770 Comparative Example 1 ^a 802 Comparative Example 2 ^a 402 Comparative Example 3 ^a 380 Comparative Example 4 ^a 600 Comparative Example 5 ^a 798 Comparative Example 6 ^a 440 Comparative Example 7 ^a 805 Comparative Example 8 ^a 400

^a : KS F 2405 Progress report

^b : 1,000,000 N / mm < ² >

As shown in Table 4, when Comparing Examples 1 and 7-8 with Comparative Examples 7-8, it can be seen that as the content of PMMA resin decreases, the compressive strength increases. From this, it can be seen that the content of PMMA resin significantly affects the durability of asphalt road specimen. Comparing Example 8 with Comparative Example 8, it can be seen that the compressive strength was remarkably decreased in Comparative Example 8 compared with Example 8. From this, it can be seen that when the content of the PMMA resin exceeds 35 parts by weight, the durability is remarkably weakened. Comparing Example 7 with Comparative Example 7, it can be seen that the difference in compressive strength is not large. It can be seen from this that even if the content of the PMMA resin is less than 25 parts by weight, the increase in durability is not large.

As shown in Table 4, when Examples 1-3 and Comparative Examples 1-3 are compared, it can be seen that the compressive strength increases as the solid content decreases even though the PMMA resin content is the same. From this, it can be seen that the solid content of the PMMA resin also significantly affects the durability of the asphalt road specimen. Comparing Example 3 and Comparative Example 2, it can be seen that the compressive strength is remarkably decreased in Comparative Example 2 as compared to Example 3. From this, it can be seen that when the solid content of the PMMA resin exceeds 50% by weight, the durability is remarkably weakened. On the other hand, when comparing Example 2 and Comparative Example 1, it can be seen that the difference in compressive strength is not large. It can be seen from this that even if the solid content of the PMMA resin is less than 40% by weight, the increase in durability is not large.

As shown in Table 4, when Examples 1 and 4 and Comparative Example 3-4 are compared, it can be seen that as the carbon fiber content increases, the compressive strength increases. From this, it can be seen that the carbon fiber significantly affects the durability of the asphalt road specimen. Comparing Example 1 with Comparative Example 3, it can be seen that durability is greatly increased when carbon fiber is included. Comparing Example 4 with Comparative Example 4, it can be seen that the difference in compressive strength between Example 4 and Comparative Example 4 is not large. When the carbon fiber content exceeds 7 parts by weight, it can be understood that the carbon fiber content is increased but does not greatly affect the durability increase.

Now, preferred embodiments, comparative examples and test examples of the present invention have been described. Although the present invention has been described in detail by way of examples, comparative examples and test examples, it is not intended to limit the present invention, but merely to demonstrate the present invention. Therefore, it will be apparent to those skilled in the art that the scope of the present invention is not limited by these embodiments in accordance with the gist of the present invention. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

Claims (7)

25-35 parts by weight of PMMA resin, 25-35 parts by weight of silica, 25-40 parts by weight of calcium carbonate, 1-5 parts by weight of pigment, 3-7 parts by weight of carbon fiber, 2-5 parts by weight of thermoplastic rubber, 2 parts by weight of an amine and 0.01 to 1 part by weight of an amine,
Wherein the PMMA resin has a solids content of 40-50 wt% and a volatile to non-volatile content ratio of 6: 4 to 5: 5. delete The method according to claim 1,
Wherein the PMMA resin is obtained by a polymerization reaction of an MMA monomer and a BMA monomer and has a molecular weight (Mw) of 800-1,200. The method according to claim 1,
Wherein the carbon fibers are selected from the group consisting of polyacrylonitrile (PAN) fibers, pitch fibers, rayon fibers, and cellulose fibers. The method according to claim 1,
Examples of the thermoplastic rubber include natural rubber (NR), styrene-butadiene rubber (SBR), chloroprene rubber (CR), nitrile butadiene rubber (NBR), ethylene vinyl acetate ; Ethylene vinyl acetate). ≪ / RTI > The non-slip composition according to claim 1, further comprising any one of activated charcoal, charcoal, loess, rice straw and rice husk. A first stirring step in which a PMMA resin is charged into a stirrer and stirred;
A second agitating step of agitating the first mixture by adding an anti-settling agent to the agitator;
A third stirring step in which the amine is added to the first mixture to stir the second mixture;
A fourth stirring step in which calcium carbonate and a pigment are added to the second mixture to stir the third mixture;
A fifth stirring step in which carbon fiber and thermoplastic rubber are added to the third mixture to stir the fourth mixture;
A sixth stirring step in which silica is added to the fourth mixture to stir the final mixture;
An inspection step of inspecting the color, viscosity and drying time of the final mixture; And
≪ / RTI > and a packaging step in which the final mixture is subdivided and packaged.